Vault-light construction.



A. GHAMBLEY. VAULT LIGHT GOHSTRUGTION. APPLICATION FILED umso, 1914.

Patented Sept; 1, 1914.

THE "ORR(S PETERS CO" PHOlO-LITHO.. WASHINGTON. D. C-

more.

ALEXANDER CHAMBLEY, or PHILADELPHIA, enrmsrnvnurn.

VAULT-LIGHT CONSTRUCTIOIW.

Specification of Letters Patent.

PatentedSept. i, 1914.

Application filed ,Tanuary 30, 1914. Serial No. 815,572.

To all whom it may concern; 1

Be it known that I, ALEXANDER CHAM- BLEY, a citizen of the United States, residing at 243 South Tenth street, in the city and county of Philadelphia and State of Pennsylvania, have invented new and useful Im-' provements in Vault-Light Construction, of which. the following is a specification.

This invention relates to improvements in vault light construction, the primary object being to provide a water-tight and moisture proof construction of simple design, efficient in operation, and inexpensive in its manufacture and installation.

A further object of the invention is to provide a vault light receptacle comprising two sections both of which can be readily stamped and shaped from pieces of sheet metal.

Another object of the invention is to provide such a receptacle the upper section of which has formed in the sides thereof a con tinuous screw thread in engagement with which corresponding threads upon a substantially circular block of transparent material are adapted to cooperate.

In addition to these, numerous other objects and advantages are brought out in the following specification when read in conjunction with the accompanying drawings, in which- Figure 1 is a view showing two such re ceptacles embedded in concrete or similar material onebeing in elevation and the other in cross section; Fig. 2 is a bottom plan view of a receptacle; and Fig. 3 is a top plan view of the same.

Referring to the drawings, which illustrate the preferred embodiment of the invention, the receptacle comprises an upper section 1 and a lower section 2, joined and secured together by the cooperation of flanges 3 and 4, turned inwardly and outwardly upon the adjacent edges of the re spective sections. top of the lower section the sides thereof diverge in such manner that their outline at the bottom is substantially rectangular in shape, the edge portion thereof being'looped outwardly, and reversely to form a reinforcing beading 5, as a result of which said lower section is less likely to become dis torted in shape and thus permit open spaces to exist between the adjacent edge portions of neighboring receptacles.

From the circular open The upper section 1 is formed as shown in Fig. 1 to present a spiral groove or screw thread 3', said section at its uppermost edge terminating in a reversely bent loop or beading 6, to reinforce the same in a similar manner to the reinforcing loop 5 on the bottom edge. The transparent light 7 itself is clearly shown in Fig. 1 and the manner in which it is secured in place is evident therefrom. In carrying out this construction the usual false or temporary flooring or support 8 is provided, upon which a group of the improved receptacles is placed with their lower edges contacting,

thus leaving only a minute hole at the intersection of four of their adjacent corners. The usual cement or'concrete mixtures 9 is poured in around the receptacles until it becomes flush with their upper edges, after which it is allowed'to fully set, this material being reinforced against sagging or warping in any well known manner such as by the'rod or bar 9. The lights of glass, or other suitable material, are then screwed into place and the false supports removed. Although I have fully described a form of receptacle comprising the preferred embodiment of my invention, I do not wish to be limited to the exact structure herein disclosed, but wish to anticipate any construction which does not depart from the spirit of the invention or fall beyond the scope of the appended claims. i

I claim 1. A receptacle for an individual lens in a vault light, comprising a body formed from two sections, each section being provided with a flange adapted to cooperate with the other flange to secure said sections together, the opposite edge portions of each of said sections being looped outwardly and reversely to form a bead.

2. A vault light receptacle comprising a substantially pyramidal base portion, surrounded by a beading and terminating upwardly in a substantially circular opening, a substantially cylindrical portion, secured to said lower portion, and provided with screw threads upon its inner surface, and a transparent member secured in said upper portion by engagement with said thread.

3. A vault light receptacle comprising a substantially pyramidal base portion, surrounded by a beading and terminating upwardly in a substantially circular opening,

a substantially cylindrical portion, secured In testimony whereof I aflix my signature to said lower portion, and provided with in presence of two witnesses.

screw threads upon its inner surfaces and T a transparent member secured in said ripper ALEXAB DER GHAMBLEY- -portion by engagement with said thread, Witnesses:

said upper portion having its edge shaped A'rwoon I-I. MOOLELLAND, to form a beadlng. E. BALSLEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner'of Patents,

' Washington, I). C. 

